Problem dual booting windows 7 and 8..

I am on Pavilion dm4 machine, which is an i5 with 6gig of RAM and it came with preinstalled windows 7. I want to dual boot windows 8 along with this windows 7. I followed THIS guide:http://www.howtogeek.com/10753.....-easy-way/

Everything went fine until the last point i.e.
"open an elevated command prompt, and type bcdboot.exe I:\Windows (assuming that I:\ is the drive with Windows 8 on it)."

I get an error message saying:

"Failed to set element application device. Status = [c00000bb]"

I have tried creating a boot entry with EasyBCD to bypass this step but no avail.